268755181 has 2 divisors, whose sum is σ = 268755182. Its totient is φ = 268755180.

The previous prime is 268755167. The next prime is 268755187. The reversal of 268755181 is 181557862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213014025 + 55741156 = 14595^2 + 7466^2 .

It is a cyclic number.

It is not a de Polignac number, because 268755181 - 2⁹ = 268754669 is a prime.

It is a super-2 number, since 2×268755181² = 144458694628685522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268755187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134377590 + 134377591.

It is an arithmetic number, because the mean of its divisors is an integer number (134377591).

Almost surely, 2^268755181 is an apocalyptic number.

It is an amenable number.

268755181 is a deficient number, since it is larger than the sum of its proper divisors (1).

268755181 is an equidigital number, since it uses as much as digits as its factorization.

268755181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 134400, while the sum is 43.

The square root of 268755181 is about 16393.7543290120. The cubic root of 268755181 is about 645.3355872402.

The spelling of 268755181 in words is "two hundred sixty-eight million, seven hundred fifty-five thousand, one hundred eighty-one".